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FH RC-02U3R30FT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FH RC-02U3R30FT
- Type
- FH
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 62.5mW
- Electronic Component
- Electronic Component
- Electronic Component
- FH
- Electronic Component
- RC-02U3R30FT
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.022g
- Electronic Component
- 3.3Ω
- Electronic Component
- 1
- Electronic Component
- BM0257366840
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 50V
- Electronic Component
- ±400ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RC-02U3R30FT 产品概述
一、产品简介
RC-02U3R30FT 为风华（FH）品牌 0402 封装厚膜贴片电阻，标称阻值 3.3Ω，阻值精度 ±1%，额定功率 62.5mW（即 1/16W），额定工作电压 50V，温度系数 TCR ±400ppm/℃，工作温度范围 -55℃～+155℃。该型号适合高密度表贴电路中对小体积、较高精度和成本敏感的常规分流、限流与偏置场合。
二、主要特性
- 封装：0402（约 1.0mm × 0.5mm），适配高密度 PCB 布局与自动化贴装工艺。
- 结构：厚膜工艺，成本低、批量一致性好。
- 精度与温漂：±1% 阻值精度适用于多数模拟与数字电路；±400ppm/℃ 的 TCR 属中等水平，温度敏感性需在精密测量场合评估。
- 功率与电压注意：额定功率 62.5mW，但按 P=V^2/R 计算，在满载功耗下该阻值对应的最大稳态电压约为 0.455V（V = sqrt(0.0625×3.3) ≈ 0.455V）。因此尽管器件标称工作电压为 50V，实际使用时必须同时满足电压与功耗两项限制，以免过热损坏。
三、典型应用
- 移动设备与消费电子的限流/分流、去耦电路。
- 电源板及信号链中非精密电阻网络。
- 对体积、成本敏感且允许中等温漂的应用场景。
四、封装与 PCB 设计建议
建议按风华或行业标准的 0402 焊盘尺寸设计 PCB，注意保持良好热扩散条件与贴片对称性。回流焊时应参考厂方推荐的焊接温度曲线，避免多次高温回流以减少阻值漂移。对焊盘涂层、掠角和丝网印刷留有适量热阻空间以改善焊点可靠性。
五、可靠性与注意事项
- 温度与环境：在靠近高温器件或散热不良处应做功率降额；工作温度接近上限时应大幅降额使用。
- 湿气与储存：长期储存建议防潮、防污染；如有烘烤要求请参考供货方说明。
- 替代选型：如需更低 TCR 或更高功率，建议选用金属膜或更大封装（0603/0805）型号。
六、选型建议
在选用前确认电路中最大可能电压及功率分布，优先以功耗限制（P）与电阻值（R）计算安全电压并留有裕量；对于温度漂移敏感的设计，应考虑 TCR 更小的型号或增加温度补偿方案。若需样品或批量采购，请按 RC-02U3R30FT 全称向供应商索取完整数据手册以获取详细的热阻、脉冲功率和回流焊工艺参数。
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